Inter State Rapid Transit Co 0-4-2 Locomotives of the USA

Class Details by Steve Llanso of Sweat House Media

Class 1 (Locobase 11883)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University, Vol 13, p. 28 and p. 259. Works numbers were 7986, 7992, 7994 in June 1886; 8051-8053, 8055-8056 in July

8703-8704, 8710-8711 in August 1887; 9399-9400 in August 1888.

Like rival East Fifth Street (Locobase 11577), this Kansas City street railway used the Baldwin "steam dummy" design to serve its lines. Only a couple years after the acceptance of this relatively large order of dummies, the ISRTC electrified its service and disposed of the fleet. At around that same time, Bill Eagleton of the railway wrote Baldwin to request a change in the valve to increase the average load up their steepest grade from two to three cars.

At least six went to work for lumber companies.

Specifications by Steve Llanso of Sweat House Media
Locobase ID11883
RailroadInter State Rapid Transit Co
Number in Class14
Road Numbers1-8, 13-18
Number Built14
BuilderBurnham, Parry, Williams & Co
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase 4.50'
Engine Wheelbase 9.67'
Ratio of driving wheelbase to overall engine wheebase 0.47
Overall Wheelbase (engine & tender) 9.67'
Axle Loading (Maximum Weight per Axle)
Weight on Drivers18000 lbs
Engine Weight24000 lbs
Tender Light Weight
Total Engine and Tender Weight
Tender Water Capacity300 gals
Tender Fuel Capacity (oil/coal)
Minimum weight of rail (calculated)15 lb/yard
Geometry Relating to Tractive Effort
Driver Diameter35"
Boiler Pressure130 psi
Cylinders (dia x stroke)10" x 14"
Tractive Effort4420 lbs
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.07
Heating Ability
Firebox Area35 sq. ft
Grate Area 8.70 sq. ft
Evaporative Heating Surface269 sq. ft
Superheating Surface
Combined Heating Surface269 sq. ft
Evaporative Heating Surface/Cylinder Volume211.37
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1131
Same as above plus superheater percentage1131
Same as above but substitute firebox area for grate area4550
Power L12646
Power MT648.16

If you have any railroad data such as diagram books, rail station plans or anything else that you would be willing to share, please contact us.